public override void ProcessServerKeyExchange(Stream input)
        {
            SecurityParameters securityParameters = mContext.SecurityParameters;

            SignerInputBuffer buf   = new SignerInputBuffer();
            Stream            teeIn = new TeeInputStream(input, buf);

            ServerDHParams dhParams = ServerDHParams.Parse(teeIn);

            DigitallySigned signed_params = ParseSignature(input);

            ISigner signer = InitVerifyer(mTlsSigner, signed_params.Algorithm, securityParameters);

            buf.UpdateSigner(signer);
            if (!signer.VerifySignature(signed_params.Signature))
            {
                throw new TlsFatalAlert(AlertDescription.decrypt_error);
            }

            this.mDHAgreePublicKey = TlsDHUtilities.ValidateDHPublicKey(dhParams.PublicKey);
            this.mDHParameters     = ValidateDHParameters(mDHAgreePublicKey.Parameters);
        }
        public override void ProcessServerKeyExchange(Stream input)
        {
            SecurityParameters securityParameters = mContext.SecurityParameters;

            SignerInputBuffer buf   = new SignerInputBuffer();
            Stream            teeIn = new TeeInputStream(input, buf);

            ECDomainParameters curve_params = TlsEccUtilities.ReadECParameters(mNamedCurves, mClientECPointFormats, teeIn);

            byte[] point = TlsUtilities.ReadOpaque8(teeIn);

            DigitallySigned signed_params = ParseSignature(input);

            ISigner signer = InitVerifyer(mTlsSigner, signed_params.Algorithm, securityParameters);

            buf.UpdateSigner(signer);
            if (!signer.VerifySignature(signed_params.Signature))
            {
                throw new TlsFatalAlert(AlertDescription.decrypt_error);
            }

            this.mECAgreePublicKey = TlsEccUtilities.ValidateECPublicKey(TlsEccUtilities.DeserializeECPublicKey(
                                                                             mClientECPointFormats, curve_params, point));
        }